Double-acting spring door-closer.



PATENTED SEPT. is, 1906.

0. H. OOUMPAUGH.

DOUBLE ACTING SPRING DOOR CLOSER.

APPLICATION FILED 00T.10,1904.

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No. 831,236. Q PATENTED SEPT. 18, 1906.

,0. H. OOUMPAUGH.

DOUBLE ACTING SPRING DOOR CLOSER. AP'PLIOATION FILED 0OT.10, 1904 2 SHEETS-SHEET 2 anvcnfoz a e witnmoao LI-{es acallqgwgk 54mm mm,

CHARLES H. OCUMPAUGHiOF ROCHESTER, NEW YORK.

DOUBLE-ACTING SPRING DOOR-CLOSER.

Specification of Letters Patent.

Patented Sept. 18, 1906.

duplication filed ctober 10, 1904. Serial No. 2273 To all whom, it flung, concern: 6

Be it known that I, CHARLES H. OGUM- PAUGH, aresident of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Double-Acting Spring Door-Closers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

The invention relates to double acting spring door-closers, and to that class that are ordinarily concealed in the floor beneath a door, gate, or the like.

It has for its object to simplify and cheapen the construction and increase the efliciency of such devices.

The invention consists in the combinations hereinafter described and pointed out.

In the accompanying drawings, forming part of this specification, Figure 1 is a partial section showing the device in and below a floor and door. Fig. 2 is a central vertical section. Fig. 3 is a section on line 3 3 of Fig. 2 looking upward, as indicated by arrows.

Figs. 4, 5, and 6 are each a plan, the coversbeing removed and different situations of the sleeve and spring indicated. Fig. 7 is a perspective of the sleeve, and Fig. 8 is a perspective of the spindle.

Numeral 1 denotes a casing, 2 a top plate or cover, and 3 a dust-guard or upper cover.

4 denotes a spindle stepped or journaled in the socket 5 on the bottom of the casing. 6 denotes a groove in the bottom of this socket, which may, if desired, be utilized to hold antifriction-balls, upon which the foot of the spindle may rest.

7 denotes a stop fixed on the interior of the casing to cooperate with a stop 8, fixed on a sleeve 10, to limit its rotation in the direction of the arrow (1, Fig. 6, in the particular arrangement herein illustrated. Such engagement of sleeve-stop 8 with cross-stop 7 is shown in Fig. 4. The main part of the sleeve is comparatively short and might be properly styled a ring. It has an extension or stem 11, the foot of which is adapted to be engaged by a shoulder 12, fixed on the spindle. This engagement is shown in the bottom plan, Fig. 3, which indicates the situa tion of the parts when the sleeve (see Fig. 7)

surrounds the spindle (see Fig. 8) and rests 0111 the spindle-shoulder and the spring is in p ace. i

14 is a double-acting spring, one end 15 of which is held in one of the series of holes 16, formed in a flange of the sleeve 10. The spring 14, coiled about the spindle and sleeve extension 11, has its opposite end 13 situated within a post 18, fixed to the spindle, and is bent, as shown, and is extended beyond said post to engage the casing-stop 7 when the spindle is suitably turned in the direction of arrow I). (See Fig. 5.) In said figure the upper end of the spring is denoted by the small circle adjacent the stem 11 the other end of the spring being shown at 13 in full lines as engaged with lug 7. It is also indicated in Figs. 1 and 2, the post 18 being shown in said figures. In Fig. 3 its base is shown adjacent the inner surface of lug. 7.

The exposed end of the spindle is flattened, as at 19, or is otherwise formed to be held against rotation in a socket 17, provided in the bottom of a door or the like, whereby the spindle is partially rotated either to the right or left, according to the movement of the door. It will be understood that the door will, or may be, provided with a pivot connection with its frame at a point oppositethe pivot-spindle 4.

The spindle, Fig. 3, the sleeve, Fig. 7, and the casing being assembled, as shown in Figs. 1 and 2, and the spindle fixed to the door and the door closed, the opening of the door in either direction will put the spring under tension to close it when free. If the door be opened to turn spindle 4 in the direction of the arrow athat is, to the rightthe sleeve will be held by the engagement of stop 7, fixed to the casing, with stop 8,fixed on the sleeve,

and consequently the end 15 of the spring will be held stationary, while the opposite end of the spring will be moved with the spindle by reason of the engagement of its end 13 with the post 18 of the rotary spindle, by which operation the spring is put under tension and will act when free to return the spindle, and consequently the door.

If the door be turned from a closed position to rotate the spindle to the left and in the direction of arrow 6, it will turn the sleeve 10 by reason of the engagement of its shoulder 12 with sleeve extension 11.

(Shown in Fig. 3.) This moves the upper end of the spring, its lower end 13 being at such time held by the casing-stop 7.

The construction is such that it canbe used to close either a right or a left hand door or to close one swinging in both directions beyond its closed or normal situation. i The tension of the spring can be adjusted by entering its end 15 in a difl'erent hole 16 as required, and obviously as many of these holes may be provided as desired.

The particular form and size of the lugs, stops, or flanges may be varied without departing from the substantial principles of operation.

I am aware that double-acting spring doorclosing devices comprising casings, spindles, springs, and sleeves are not broadly of my invention. My improvement is characterized by its simplicity, only one spring and sleeve being used for the double action required. Further, the casing has only one lug or stop, though obviously only the upper and lower ends of this are operative.

Having thus described the invention, what I claim is 1. The combination in a door-controlling device, of the casing, the rotatable spindle, thesleeve rotatable on said spindle, a spring having one end connected to the sleeve and the other end connected directly to the spindle, means on the casing for holding mediately the first-named end of the spring when 1 the door is opened in one direction, and means on the casing for holding the spindleconnected end of the spring directly when the door is oppositely opened.

2. The combination in a door-controlling device, of a casing, a rotatable spindle, a sleeve loosely mounted on said spindle, a spring having one end connected to the sleeve and its other end loosely connected to the spindle, said sleeve bearing on a part of said casing to hold its spindle-connected end independently of the sleeve and spindle when the latter is rotated in the opposite direction.

3. The combinationv in a door-controlling device, of the casing, the spindle, the sleeve provided with a depending stem and with a spring-securing means thereon, said sleeve being rotatively mounted on. the spindle, and a spring surrounding the spindle and sleeve and having one end fixed to the sleeve and loosely connected to the spindle, said casing having a part holding one end of the spring stationary by engagement with the sleeve and the other having means for holding the spring directly according to the direction of rotation of the spindle.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

CHARLES H. OOUM-PAUG-H- Witnesses:

A. M. GREENWOOD, JOHN GEO. OIBRIEN. 

